I'm demoing the .Net Windows Forms Control and DLL to create jpgs of PDF417 barcodes. It seems like when I encode a large amount of text (1040 characters), generate a PDF417 barcode, and then scan it, some of the text at the end doesn't show up.

I know the FAQ says there's a limitation around 800 characters, but the demo code (PDF417 Image generator) that came with the demo is able to create barcodes with 1040+ characters. Have I reached a limitation or am I doing something wrong?